The ProxyBypass contains the list of host names or IP addresses, or both, that should not be routed through the proxy. The list can contain wildcards. If the ProxyBypass is empty, the WinHTTP reads the bypass list from the registry.

You can use wild cards to match domain and host names or addresses  for example, www.*.com;128.*;240.*;*.mygroup.*;*x* and so on. Use semicolon (;) to separate entries.